Control Box Tour

 
    Here Is a General Tour of a Typical JHT Board LED 

a Hot tub's components connect to these terminals
b Incoming Power
c Board/Part Number
d Transform
e Fuse
f Heater In
g Heater Out
h Flow/Pressure Switch
i Temp/OH Sensor
j DIP Jumpers; Tells board what components/setup you have.
k Topside
l Chip Number.
 
 
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